HVX12-31-12/K12KV 1250A_Schenider_PRODUCT_吉林易择科技技术发展有限公司

The Schneider Electric HVX12‑31‑12/K (HVX EP Series) Vacuum Circuit Breaker is a medium‑voltage circuit protection device designed for use in 12 kV AC power distribution networks. It uses vacuum interrupter technology to switch and interrupt fault currents in three‑phase systems with high reliability and minimal contact wear. This breaker is suitable for indoor switchgear applications and industrial or utility networks, offering draw‑out or fixed configurations, robust insulation, and strong breaking capability. It is engineered to help protect distribution lines, transformers, generators, and other critical electrical equipment from overloads and short circuits through rapid interruption of fault currents.

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DESCRIBE

Technical Parameters Parameter Specification Product Name Schneider Electric Medium Voltage HVX12‑31‑12 Vacuum Circuit Breaker Model / Series HVX12‑31‑12/K (HVX EP Series) Device Type Medium‑Voltage Vacuum Circuit Breaker Rated Voltage 12 kV AC system Rated Current (In) 1250 A Rated Short‑Circuit Breaking Capacity (Icu) 31.5 kA (typical class) Rated Short‑Time Withstand Current (Icw) 31.5 kA for 3 s (typical) Rated Short‑Circuit Making Current (Icm) ~78.75 kA (50 Hz) Pole Configuration 3‑pole (3P) Interrupting Medium Vacuum (no arcing gas, low wear technology) Operating Frequency 50/60 Hz Installation Type Indoor switchgear (draw‑out or fixed chassis) Operating Sequence O‑0.3 s‑CO‑3 min‑CO (typical motor‑spring or stored‑energy mechanism) Insulation Type Solid insulation suitable for 12 kV class Drive Mechanism Spring or motor‑spring operating mechanism Auxiliary Voltage Configurable (e.g., 110 V DC or 220 V DC coils available) Application Primary protection in medium‑voltage distribution switchgear Standards Compliance IEC/ANSI medium‑voltage breaker standards

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